Valve removing tool



A g 19 1941 G. BL QSTRANDER Em 2,253 045 VALVE REMOVING TOOL Filed July 29, 1958 @oooo@ ATTO R N EYS Patented Aug. 19, 1941 VALVE REMOVING TOOL George B. Ostrander and William T. Anderson,

. Lemmon, S. Dak.

Application July 29, 1938, Serial No. 222,023

2 Claims.

This invention relates to valve removing tools and has for an object to provide a tool adapted more especially to remove Ford mushroom end valve guides and springs all in one assembly and also to replace the assembly.

Formerly a straight bar slotted at one end was used to remove Ford valve assemblies but it was found that after the motors were in service for a few thousand miles the valve guides became carboned and frozen so tight that the bar could not remove the assembly. Later types of tools which have the leverage to perform the work use a driver to lower the guide so that the valve guide retainer can be removedand then a threaded puller is used to remove the assembly. The difliculty with this type of tool is that several operations must be performed to remove one assembly.

With the above disadvantages in mind the present invention provides a tool which may be inserted in the notch in the valve guide the same as the conventional bar whereupon when the handle is raised the guide is lowered so that the retainer may be removed. Then it is simply necessary to place the bar below the guide and hook the fulcrum bar of the tool over the engine block and lower the handle to exert sufficient leverage upon the assembly to remove the most tightly frozen assembly.

With the above and other objects in view the invention consists of certain novel details of construction and combinations of parts hereinafter fully described and claimed, it being understood that various modifications may be resorted to within the scope of the appended claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawing forming part of this specification:

Figure l is a side elevation of the tool in applied position to remove the valve assembly.

Figure 2 is a fragmentary side elevation of the tool in position to lower the guide so the keeper may be removed.

Figure 3 is a detail sectional view taken on the line 3-3 of Figure 1 showing the latch for latching the handle to the arcuate fulcrum bar when the tool is to be used to lower the guide.

Figure 4 is a detail sectional view taken on the line 44 of Figure 1 showing the pivotal connection of the handle bar with the fulcrum bar.

Figure is a detail sectional view with parts in elevation showing the bayonet joint connection between the grip and the handle bar.

Figure 6 is a fragmentary plan view showing the forked end of the handle bar.

Figure '7 is a plan view of the angle iron plate which is anchored to the engine block to receive the set screw of the fulcrum bar when the tool is to be used for removing the valve assembly as shown in Figure l. v

Referring now to the drawing in which like characters of reference designate similar parts in the various views, l0 designates a handle bar having a grip ll provided with a counterbore I2 to receive the upper end of the handle bar. A pin [3 and bayonet slot l4 connects the grip to the handle bar. A helical spring i5 is confined between the end of the handle bar and the inner wall of the counterbore l2 to hold the pin firmly engaged in the bayonet slot.

The handle bar is equipped with a forked working end [6 adapted to straddle'the guide ll of a Ford Valve assembly as best shown in Figure 2.

An arcuate fulcrum bar I8 is pivotally connected at one end to the handle bar I0 near the forked end thereof through the medium of the pivot pin I9, as best shown in Figure 4. The handle bar loosely fits in a slot 20 in the fulcrum bar at the pivot pin to provide relative adjustment of the fulcrum bar with respect to the handle bar. The fulcrum bar is provided near one end with a set screw 2|.

A latch plate 22 is pivotally secured through the medium of a pin 23 to the fulcrum bar [8. The latch bar bears against a leaf spring 24 which carries a pair of pins 25 one of which is engageable in registering openings 26 and 21 in the fulcrum bar and handle bar, as best shown in Figure 3. The other pin is engaged through an opening 28 in the fulcrum bar. The latch plate and pins anchor the fulcrum bar to the handle bar when the tool is to be used to lower the guide I! as will now be described. When the fulcrum bar is anchored stationary to the handle bar I0 by the latch plate 22, as best shown in Figure 2, the forked end I6 of the handle bar it! may be placed astride the lower end of the guide ll while the endof the fulcrum bar may be placed against the block. The handle bar l0 may then be lifted, and rocks on the fulcrum bar with resultant lowering of the forked end [6 of the handle bar to move the guide I! downwardly so that the keeper 29 may be removed.

After the keeper is removed the latch plate 22 may be released to permit the pins 25 being withdrawn to disconnect the handle bar It from the fulcrum bar at this point. The forked end [6 of the handle bar In is then disposed against the bottom of the guide I! as best shown in Figure 1 while the set screw 2| is advanced against an angle iron mandrel 30 which is placed over the head bolts of the engine. At this position of the parts the handle may be rocked downwardly on the fulcrum bar as a fulcrum-to move the forked end [B with great leverage upwardly against the guide I! and dislodge the entire valve assembly no matter how badly frozen in place.

From the above description it is thought that the construction and operation of the invention will be fully understood without further explanation. r

What is claimed is:

1. A tool for removing mushroom type valves A and springs in one assembly comprising, a handle bar having a forked working endadapted' tending through the sides of the slot and the handle bar, a set screw threadedly engaged through that end of the fulcrum bar remote from the pivoted end thereof, said set screw and the extremity of the pivoted end of the fulcrum bar being selectively engageable with a stationary part of an internal combustion engine adjacent to the valve assembly to be removed, and means carried by the fulcrum bar for locking the fulcrum bar to the handle bar substantially midway between the ends of the fulcrum bar to prevent rotation of the fulcrum bar around the aforesaid pivot.

-2. The structure of claim 1 and in which said means comprises a latch plate removably secured to the fulcrum bar, a leaf spring underneath the latch plate, and a pair of pins carried 

